Note: Identifying the spawn trigger is difficult. It is usually the highest bounty battleship, but not always.
It will get confusing when there are two (or more) battleships with the same name or two different battleships where either one is the possible trigger.
Try to see if one flies differently i.e. a little separated from the main group.

Warp In

Auto-aggro from Initial Group at warp-in.
Spawn is triggered when the trigger battleship is killed. The re-spawns may target drones.

* The acceleration gate leads to the Bonus Pocket. It is unlocked after you have killed Tiogo Kargaz.
* An Angel Diamond Tag is required to access the Bonus Pocket. The tag is not consumed upon activation and can be re-used infinitely.
* Fleet members may use the acceleration gate without the tag if they do it within 10 seconds after activation.
* Mission is flagged completed after you have killed Tiogo Kargaz.

Bonus Pocket (Optional)

Whole pocket aggro as you warp-in.
Killing the Gist Seraphim battleship will trigger a spawn near the Angel Bunker.

* Move away from the Angel Battlestation/Bunker after warping in. This will buy you a bit of time to kill the sentries as the enemy ships try to close in.
* Eliminating all the Angel Cruise Missile batteries and Tower Sentry Angel III first will negate a significant portion of the incoming damage.
* Do not kill the Gist Seraphim trigger, wait until you have cleared the pocket from all hostile targets.
* The bonus room deals some EM/Thermal damage. Depending on what spawns, the mixture can be anywhere from Exp 55% / Kin 22% / EM 14% / Therm 9% to Exp 49% / Kin 28% / Therm 15 % / EM 7%. The sentry towers deal equal EM / Therm. Angel Cruise Batteries, Arch Gistii Ruffian, and Gistatis Tribunis deal lots of Thermal. Angel Viper, Gistatis Legatus, Gist Malakim, and Gist Throne deal EM. Removing these may help your tank, depending how you decide to set up.